diff --git a/projects/strgen_vs80.vcproj b/projects/strgen_vs80.vcproj
--- a/projects/strgen_vs80.vcproj
+++ b/projects/strgen_vs80.vcproj
@@ -114,11 +114,11 @@
 			Filter="cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
 			>
 			<File
-				RelativePath="..\src\strgen\strgen.c"
+				RelativePath="..\src\strgen\strgen.cpp"
 				>
 			</File>
 			<File
-				RelativePath="..\src\string.c"
+				RelativePath="..\src\string.cpp"
 				>
 				<FileConfiguration
 					Name="Release|Win32">